课件内容:
Unit 1 介绍 Introduction
介绍 Introduction
Unit 2 分类和基本性能参数 Classification and basic performance parameters
分类 Classification
基本性能参数 Basic performance parameters
Unit 3 工作原理 Working principle
叶片式泵与风机工作原理 Working principle of paddle type of pumps and fans
容积式泵与风机工作原理 Working principle of displacement type of pumps and fans
Unit 4 能量方程 Energy equation
能量方程式的分析 Analysis of energy equation
实际能头和全压的计算 Calculation of actual head and total pressure
叶片数为有限数时理论能头的修正 Correction of theoretical head with limited number of blades
Unit 5 流体运动和速度三角形 Fluid motion and velocity triangle
离心式叶轮的流动和速度三角形 Fluid motion and velocity triangle of centrifugal impeller
轴流式叶轮的流动和速度三角形 Fluid motion and velocity triangle of axial flow impeller
Unit 6 离心式叶轮型式分析 Analysis of types of centrifugal impeller
离心式叶轮型式的分析 Analysis of types of centrifugal impeller
Unit 7 轴向力 Axial force
轴向力 Axial force
Unit 8 损失和效率 Loss and efficiency
损失和效率-机械损失和机械效率 Loss and efficiency – Mechanical loss and mechanical efficiency
损失和效率-容积损失和容积效率 Loss and efficiency- Volume loss and volume efficiency
损失和效率-流动损失和流动效率 Loss and efficiency – Flow loss and flow efficiency
Unit 9 性能曲线 Performance curve
离心式叶轮的性能曲线 Performance curve of centrifugal impeller
轴流式叶轮的性能曲线 Performance curve of axial impeller
离心式叶轮性能曲线的比较 Performance curve – comparison with centrifugal impellers
离心式、混合式和轴流式性能曲线的比较 Performance curve – comparison with centrifugal mixed flow and axial flow impellers
Unit 10 预旋 Prewhirl
预旋 Prewhirl
Unit 11 运行工况点 Operating point
运行工况点 Operating point
Unit 12 调节 Regulation
调节-分流调节 Regulation- Shunt regulation
调节-节流调节 Regulation- Throttle regulation
调节-前导叶和动叶调节 Regulation- Front guide vane and blade regulation
调节-气蚀调节 Regulation- Cavitation regulation
调节-变速调节 Regulation-Variable speed adjustment
Unit 13 联合运行 Combined operating
联合运行-并联运行 Combined operating -parallel operation
联合运行-串联运行 Combined operating -Series operation
Unit 14 泵与风机的性能曲线 Performance curve of pump and fan
空气动力学略图 Aerodynamic sketch
通用性能曲线 Common performance curve
无因次性能曲线 Non-dimensional performance curv额、
选择曲线 Selected curve
Unit 15 相似定律 Similarty law
相似定律介绍 Similarity theory introduction
相似三定律 Three laws of similarity
相似定律的应用 Application of similarity law
比转速 Specific speed
比转速的应用 Application of specific speed
型式数 Mode number
Unit 16 气蚀 Cavitation
汽蚀现象和影响Cavitation phenomena and its effect
气蚀相似定律和气蚀比转速Cavitation similarity law and cavitation specific speed
几何安装高度和吸上真空高度 Geometry installation height and suction vacuum lift
汽蚀余量 Net positive suction head
提高汽蚀余量的措施 Measures to improve NPSH
Unit 17 叶片的切割与加长 Cutting and lengthening of blade
叶片的切割和加长 Cutting and lengthening of blade
《泵与风机》PPT课件 王芳 东北大学
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